Module std::char
A character type.
The char
type represents a single character. More specifically, since ‘character’ isn’t a well-defined concept in Unicode, char
is a ‘Unicode scalar value’, which is similar to, but not the same as, a ‘Unicode code point’.
This module exists for technical reasons, the primary documentation for char
is directly on the char
primitive type itself.
This module is the home of the iterator implementations for the iterators implemented on char
, as well as some useful constants and conversion functions that convert various types to char
.
Structs
The error type returned when a conversion from u32 to char fails.
An iterator that decodes UTF-16 encoded code points from an iterator of u16
s.
An error that can be returned when decoding UTF-16 code points.
An iterator that yields the literal escape code of a char
.
An iterator that yields the literal escape code of a char
.
Returns an iterator that yields the hexadecimal Unicode escape of a character, as char
s.
An error which can be returned when parsing a char.
Returns an iterator that yields the lowercase equivalent of a char
.
Returns an iterator that yields the uppercase equivalent of a char
.
Constants
The highest valid code point a char
can have.
U+FFFD REPLACEMENT CHARACTER
(�) is used in Unicode to represent a decoding error.
The version of Unicode that the Unicode parts of char
and str
methods are based on.
Functions
Creates an iterator over the UTF-16 encoded code points in iter
, returning unpaired surrogates as Err
s.
Converts a digit in the given radix to a char
.
Converts a u32
to a char
.
Converts a u32
to a char
, ignoring validity.
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/char/index.html